/*
 * The MIT License 
 *
 * Copyright (c) 2010 pf-miles
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package me.wenyue.parambinder;

import java.util.List;

import me.wenyue.parambinder.exception.ParamBinderException;

/**
 * Represents the method need to be binded
 * 
 * @author pf-miles 2010-9-28 下午05:50:32
 * 
 */
public interface BindingMethod {
    /**
     * bind values according to its params
     * 
     * @param context
     *            the context from which the parameter values get
     * @return list of arguments fetched from context
     */
    List<Object> bind(BindingContext context);

    /**
     * to invoke the method with given args
     * 
     * @param <T>
     *            return type
     * @param obj
     *            the object to be invoked on
     * @param args
     *            list of args to invoke the method, usually produced via 'bind'
     *            method
     * @return the result of invoking the method, or null if the underlying
     *         method returns 'void'
     * @throws ParamBinderException
     */
    <T> T invoke(Object obj, List<Object> args) throws ParamBinderException;

    /**
     * bind & invoke the method immediately
     * 
     * @param <T>
     *            return type of the method
     * @param context
     *            the context from which the parameter values get
     * @param obj
     *            the object to be invoked on
     * @return the result of invoking the method, or null if the underlying
     *         method returns 'void'
     * @throws ParamBinderException
     */
    <T> T bindAndInvoke(BindingContext context, Object obj) throws ParamBinderException;
}
